426545 has 12 divisors (see below), whose sum is σ = 595764. Its totient is φ = 292320.

The previous prime is 426541. The next prime is 426551. The reversal of 426545 is 545624.

It can be written as a sum of positive squares in 2 ways, for example, as 47089 + 379456 = 217^2 + 616^2 .

It is not a de Polignac number, because 426545 - 2² = 426541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (49647).

2⁴²⁶⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

426545 is a deficient number, since it is larger than the sum of its proper divisors (169219).

426545 is a wasteful number, since it uses less digits than its factorization.

426545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1753 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 426545 is about 653.1041264607. The cubic root of 426545 is about 75.2757258354.

The spelling of 426545 in words is "four hundred twenty-six thousand, five hundred forty-five".